{
  "url": "https://openlegislation.uk/draft-environmental-authorisations-scotland-regulations-2018/schedule-8/part-6",
  "json_url": "https://openlegislation.uk/draft-environmental-authorisations-scotland-regulations-2018/schedule-8/part-6.json",
  "legislation": "sdsi/2018/9780111039014",
  "legislation_title": "The Environmental Authorisations (Scotland) Regulations 2018",
  "legislation_url": "https://openlegislation.uk/draft-environmental-authorisations-scotland-regulations-2018",
  "path": "schedule/8/part/6",
  "kind": "part",
  "number": "6",
  "heading": "Tables",
  "text": "Table 1\nConcentration of radionuclides: NORM industrial activities\nRadionuclide\nSolid or relevant liquid concentration in becquerels per gram (Bq/g)\nAny other liquid concentration becquerels per litre (Bq/l)\nGaseous concentration in becquerels per cubic metre (Bq/m3)\nU-238sec\n1\n0.1\n0.001\nU-238+\n5\n10\n0.01\nU-234\n5\n10\n0.01\nTh-230\n10\n10\n0.001\nRa-226+\n1\n1\n0.01\nPb-210+\n5\n0.1\n0.01\nPo-210\n5\n0.1\n0.01\nU-235sec\n1\n0.1\n0.0001\nU-235+\n5\n10\n0.01\nPa-231\n5\n1\n0.001\nAc-227+\n1\n0.1\n0.001\nTh-232sec\n1\n0.1\n0.001\nTh-232\n5\n10\n0.001\nRa-228+\n1\n0.1\n0.01\nTh-228+\n1\n1\n0.001\n“The table 1 summation rule” means the sum of the quotient A/B where—\n(a) “A” means the quantity of each radionuclide listed in column 1 of Table 1 that is present in the substance or article; and\n(b) “B” means the quantity of that radionuclide specified in (as appropriate)—\n(i) column 2 of Table 1 where the substance or article is a solid or a relevant liquid;\n(ii) column 3 of Table 1 where the substance or article is any other liquid; or\n(iii) column 4 of Table 1 where the substance or article is a gas.\nTable 2\nConcentration of radionuclides\nRadionuclide\nConcentration in becquerels per gram (Bq/g)\nH-3\n102\nBe-7\n10\nC-14\n10\nF-18\n10\nNa-22\n0.1\nNa-24\n1\nSi-31\n103\nP-32\n103\nP-33\n103\nS-35\n102\nCl-36\n1\nCl-38\n10\nK-42\n102\nK-43\n10\nCa-45\n102\nCa-47\n10\nSc-46\n0.1\nSc-47\n102\nSc-48\n1\nV-48\n1\nCr-51\n102\nMn-51\n10\nMn-52\n1\nMn-52m\n10\nMn-53\n102\nMn-54\n0.1\nMn-56\n10\nFe-52+\n10\nFe-55\n103\nFe-59\n1\nCo-55\n10\nCo-56\n0.1\nCo-57\n1\nCo-58\n1\nCo-58m\n104\nCo-60\n0.1\nCo-60m\n103\nCo-61\n102\nCo-62m\n10\nNi-59\n102\nNi-63\n102\nNi-65\n10\nCu-64\n102\nZn-65\n0.1\nZn-69\n103\nZn-69m+\n10\nGa-72\n10\nGe-71\n104\nAs-73\n103\nAs-74\n10\nAs-76\n10\nAs-77\n103\nSe-75\n1\nBr-82\n1\nRb-86\n102\nSr-85\n1\nSr-85m\n102\nSr-87m\n102\nSr-89\n103\nSr-90+\n1\nSr-91+\n10\nSr-92\n10\nY-90\n103\nY-91\n102\nY-91m\n102\nY-92\n102\nY-93\n102\nZr-93\n10\nZr-95+\n1\nZr-97+\n10\nNb-93m\n10\nNb-94\n0.1\nNb-95\n1\nNb-97+\n10\nNb-98\n10\nMo-90\n10\nMo-93\n10\nMo-99+\n10\nMo-101+\n10\nTc-96\n1\nTc-96m\n103\nTc-97\n10\nTc-97m\n102\nTc-99\n1\nTc-99m\n102\nRu-97\n10\nRu-103+\n1\nRu-105+\n10\nRu-106+\n0.1\nRh-103m\n104\nRh-105\n102\nPd-103+\n103\nPd-109+\n102\nAg-105\n1\nAg-108m+\n0.1\nAg-110m+\n0.1\nAg-111\n102\nCd-109+\n1\nCd-115+\n10\nCd-115m+\n102\nIn-111\n10\nIn-113m\n102\nIn-114m+\n10\nIn-115m\n102\nSn-113+\n1\nSn-125\n10\nSb-122\n10\nSb-124\n1\nSb-125+\n0.1\nTe-123m\n1\nTe-125m\n103\nTe-127\n103\nTe-127m+\n10\nTe-129\n102\nTe-129m+\n10\nTe-131\n102\nTe-131m+\n10\nTe-132+\n1\nTe-133+\n1\nTe-133m+\n1\nTe-134\n10\nI-123\n102\nI-125\n102\nI-126\n10\nI-129\n0.01\nI-130\n10\nI-131+\n1\nI-132\n10\nI-133\n10\nI-134\n10\nI-135\n10\nCs-129\n10\nCs-131\n103\nCs-132\n10\nCs-134\n0.1\nCs-134m\n103\nCs-135\n102\nCs-136\n1\nCs-137+\n1\nCs-138\n10\nBa-131\n10\nBa-140\n1\nLa-140\n1\nCe-139\n1\nCe-141\n102\nCe-143\n10\nCe-144+\n10\nPr-142\n102\nPr-143\n103\nNd-147\n102\nNd-149\n102\nPm-147\n103\nPm-149\n103\nSm-151\n103\nSm-153\n102\nEu-152\n0.1\nEu-152m\n102\nEu-154\n0.1\nEu-155\n1\nGd-153\n10\nGd-159\n102\nTb-160\n1\nDy-165\n103\nDy-166\n102\nHo-166\n102\nEr-169\n10 3\nEr-171\n102\nTm-170\n102\nTm-171\n103\nYb-175\n102\nLu-177\n102\nHf-181\n1\nTa-182\n0.1\nW-181\n10\nW-185\n103\nW-187\n10\nRe-186\n103\nRe-188\n102\nOs-185\n1\nOs-191\n102\nOs-191m\n103\nOs-193\n102\nIr-190\n1\nIr-192\n1\nIr-194\n102\nPt-191\n10\nPt-193m\n103\nPt-197\n103\nPt-197m\n102\nAu-198\n10\nAu-199\n102\nHg-197\n102\nHg-197m\n102\nHg-203\n10\nTl-200\n10\nTl-201\n102\nTl-202\n10\nTl-204\n1\nPb-203\n10\nPb-210+\n0.01\nPb-212+\n1\nBi-206\n1\nBi-207\n0.1\nBi-210\n10\nBi-212+\n1\nPo-203\n10\nPo-205\n10\nPo-207\n10\nPo-210\n0.01\nAt-211\n103\nRa-223+\n1\nRa-224+\n1\nRa-225\n10\nRa-226+\n0.01\nRa-227\n102\nRa-228+\n0.01\nAc-227+\n0.01\nAc-228\n1\nTh-226+\n102\nTh-227\n1\nTh-228+\n0.1\nTh-229+\n0.1\nTh-230\n0.1\nTh-231\n102\nTh-232\n0.01\nTh-232+\n0.01\nTh-232sec\n0.01\nTh-234+\n10\nPa-230\n10\nPa-231\n0.01\nPa-233\n10\nU-230+\n1\nU-231\n102\nU-232+\n0.1\nU-233\n1\nU-234\n1\nU-235+\n1\nU-235sec\n0.01\nU-236\n10\nU-237\n102\nU-238+\n1\nU-238sec\n0.01\nU-239\n102\nU-240+\n102\nNp-237+\n1\nNp-239\n102\nNp-240\n10\nPu-234\n102\nPu-235\n102\nPu-236\n1\nPu-237\n102\nPu-238\n0.1\nPu-239\n0.1\nPu-240\n0.1\nPu-241\n10\nPu-242\n0.1\nPu-243\n103\nPu-244+\n0.1\nAm-241\n0.1\nAm-242\n103\nAm-242m+\n0.1\nAm-243+\n0.1\nCm-242\n10\nCm-243\n1\nCm-244\n1\nCm-245\n0.1\nCm-246\n0.1\nCm-247+\n0.1\nCm-248\n0.1\nBk-249\n102\nCf-246\n103\nCf-248\n1\nCf-249\n0.1\nCf-250\n1\nCf-251\n0.1\nCf-252\n1\nCf-253\n102\nCf-253+\n1\nCf-254\n1\nEs-253\n102\nEs-254+\n0.1\nEs-254m+\n10\nFm-254\n10 4\nFm-255\n102\nAny other solid or relevant liquid radionuclide that is not of natural terrestrial or cosmic origin\n0.01 or that concentration which gives rise to a dose to a member of the public of 10 microsieverts per year calculated by reference to guidance by Euratom in RP 122 part 1.\n“The table 2 summation rule” means the sum of the quotient A/B where—\n(a) “A” means the concentration of each radionuclide listed in column 1 of Table 2 that is present in the substance or article; and\n(b) “B” means the quantity of that radionuclide specified in column 2 of Table 2.\nTable 3\nRadionuclides in secular equilibrium\nParent Radionuclide\nDaughter Radionuclides\nFe-52+\nMn-52m\nZn-69m+\nZn-69\nSr-90+\nY-90\nSr-91+\nY-91m\nZr-95+\nNb-95m\nZr-97+\nNb-97m, Nb-97\nNb-97+\nNb-97m\nMo-99+\nTc-99m\nMo-101+\nTc-101\nRu-103+\nRh-103m\nRu-105+\nRh-105m\nRu-106+\nRh-106\nPd-103+\nRh-103m\nPd-109+\nAg-109m\nAg-108m+\nAg-108\nAg-110m+\nAg-110\nCd-109+\nAg-109m\nCd-115+\nIn-115m\nCd-115m+\nIn-115m\nIn-114m+\nIn-114\nSn-113+\nIn-113m\nSb-125+\nTe-125m\nTe-127m+\nTe-127\nTe-129m+\nTe-129\nTe-131m+\nTe-131\nTe-132+\nI-132\nTe-133+\nI-133, Xe-133m, Xe-133\nTe-133m+\nTe-133, I-133, Xe-133m, Xe-133\nI-131+\nXe-131m\nCs-137+\nBa-137m\nCe-144+\nPr-144, Pr-144m\nPb-210+\nBi-210, Po-210\nPb-212+\nBi-212, Tl-208\nBi-212+\nTl-208\nRa-223+\nRn-219, Po-215, Pb-211, Bi-211, Tl-207\nRa-224+\nRn-220, Po-216, Pb-212, Bi-212, Tl-208\nRa-226+\nRn-222, Po-218, Pb-214, Bi-214, Po-214\nRa-228+\nAc-228\nAc-227+\nTh-227, Fr-223, Ra-223, Rn-219, Po-215, Pb-211, Bi-211, Tl-207, Po-211\nTh-226+\nRa-222, Rn-218, Po-214\nTh-228+\nRa-224, Rn-220, Po-216, Pb-212, Bi-212, Tl-208\nTh-229+\nRa-225, Ac-225, Fr-221, At-217, Bi-213, Tl-209, Pb-209\nTh-232+\nRa-228, Ac-228, Th-228, Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Tl-208\nTh-232sec\nRa-228, Ac-228, Th-228, Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Po-212, Tl-208\nTh-234+\nPa-234m, Pa-234\nU-230+\nTh-226, Ra-222, Rn-218, Po-214\nU-232+\nTh-228, Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Tl-208\nU-235+\nTh-231\nU-235sec\nTh-231, Pa-231, Ac-227, Th-227, Fr-223, Ra-223, Rn-219, Po-215, Pb-211, Bi-211, Tl-207, Po-211\nU-238+\nTh-234, Pa-234m, Pa-234\nU-238sec\nTh-234, Pa-234m, Pa-234, U-234, Th-230, Ra-226, Rn-222, Po-218, Pb-214, Bi-214, Po-214, Pb-210, Bi-210, Po-210\nU-240+\nNp-240m, Np-240\nNp-237+\nPa-233\nPu-244+\nU-240, Np-240m, Np-240\nAm-242m+\nNp-238\nAm-243+\nNp-239\nCm-247+\nPu-243\nCf-253+\nCm-249\nEs-254+\nBk-250\nEs-254m+\nFm-254\nTable 4\nActivity Levels defining high-activity sealed sources\nRadionuclide\nActivity (TBq)\n(1)The activity given is that of the alpha-emitting radionuclide.\nAm-241\n6 × 10 –2\nAm-241/Be-9(1)\n6 × 10 –2\nCf-252\n2 × 10 –2\nCm-244\n5 × 10 –2\nCo-60\n3 × 10 –2\nCs-137\n1 × 10 –1\nGd-153\n1 × 10 0\nIr-192\n8 × 10 –2\nPm-147\n4 × 10 1\nPu-238\n6 × 10 –2\nPu-239/Be-9\n6 × 10 –2\nRa-226\n4 × 10 –2\nSe-75\n2 × 10 –1\nSr-90 (Y-90)\n1 × 10 0\nTm-170\n2 × 10 1\nYb-169\n3 × 10 –1\nAny other radionuclide\nThe D-value defined for that radionuclide in “Dangerous quantities of radioactive material (D-values)”\nTable 5\nInformation to be provided in records for high-activity sealed sources",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "footnote",
      "label": "f1",
      "text": "European Commission: Guidance on General Clearance Levels for Practices, Radiation Protection 122, 2000."
    },
    {
      "type": "footnote",
      "label": "f2",
      "text": "(1)The activity given is that of the alpha-emitting radionuclide."
    },
    {
      "type": "footnote",
      "label": "f3",
      "text": "Published by the International Atomic Energy Agency in Vienna, Austria (publication date August 2006) (IAEA-EPR-D-Values 2006)."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/sdsi/2018/9780111039014/schedule/8/part/6",
    "retrieved_at": "2026-10-30T15:33:18.087935+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}